零件图上的尺寸一般有工艺基准和加工基准。()
参考答案:错
It is said that the gravity on Mars is only about __________ of the gravity on earth.
A.three-eighths
B.third-eighth
C.three-eighth
D.third-eighth
资料1
请根据以上资料,选择以下栏目的正确选项:
“单价”栏:()。
A.0.68
B.1.05
C.1.12
D.按货物种类分别列出